Home / 218,902.20-328,353.30-140,170.20

Finding the Fourth Proportional to 218,902.20, 328,353.30 and 140,170.20

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Solution

The fourth proportional to 218,902.20, 328,353.30 and 140,170.20 is: 210,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,902.20 : 328,353.30 = 140,170.20 : x
  2. Step 2: Convert to fraction form
    218,902.20/328,353.30 = 140,170.20/x
  3. Step 3: Cross multiply
    218,902.20x = 328,353.30 × 140,170.20
  4. Step 4: Simplify right side
    218,902.20x = 46,025,347,731.66
  5. Step 5: Solve for x
    x = 46,025,347,731.66/218,902.20
  6. Step 6: Final answer
    x = 210,255.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.